The LOUIS JOLLIET was designed as a harbour vessel and is considered capable of manoeuvring safely in the fairway where the collision occurred even though the deep water channel narrows down in this part of the harbour. Evidence suggests that the LOUIS JOLLIET was proceeding as near as possible to the starboard side of the fairway. The progress of the MERLIN favoured the development of a risk of collision. As a sailing vessel of less than 20m in length proceeding along the course of a fairway, the MERLIN was required to keep preferably to the starboard side, as far as practicable. Following the electrical fail.Analysis The LOUIS JOLLIET was designed as a harbour vessel and is considered capable of manoeuvring safely in the fairway where the collision occurred even though the deep water channel narrows down in this part of the harbour. Evidence suggests that the LOUIS JOLLIET was proceeding as near as possible to the starboard side of the fairway. The progress of the MERLIN favoured the development of a risk of collision. As a sailing vessel of less than 20m in length proceeding along the course of a fairway, the MERLIN was required to keep preferably to the starboard side, as far as practicable. Following the electrical fail.